PracHub
QuestionsExperienceLearningGuidesInterview PrepGreen Card
PracHub

Master your tech interviews with 10,000+ real questions from top companies.

Product

  • Questions
  • Learning Tracks
  • Interview Guides
  • Resources
  • Green Card Tracker
  • Premium
  • Practice with AI agents
  • For Universities

Browse

  • By Company
  • By Role
  • By Category
  • Topic Hubs
  • Interview Experiences
  • SQL Questions
  • AI Coding Questions
  • Compare Platforms
  • Discord Community

Support

  • support@prachub.com
  • (916) 541-4762

Legal

  • Privacy Policy
  • Terms of Service
  • About Us

© 2026 PracHub. All rights reserved.

Tech Interview Questions

Practice the exact questions companies are asking right now.

Questions
12.1k
Companies
579
Updated
10.10.2026
12.1k Questions 579 Companies10.10.2026
PLTCHK testimonial
PLTCHK

"I got asked a hardcore MCM DP question and I saw it on PracHub as well. Solved that question in 5 minutes. Without PracHub I doubt I could solve it in 5 hours. Though somehow didn't get hired, perhaps I guess I solved it too fast? /s"

_The_TaNk_ testimonial
_The_TaNk_

"Believe me i'm a student here jn US. Recently interviewed for MSFT. They asked me exact question from PracHub. I saw it the night before and ignored it cause why waste time on random sites. I legit wanna go back and redo this whole thing if I had chance. Not saying will work for everyone but there is certainly some merit to that website. And i'm gonna use it in future prep from now on like lc tagged"

Chris testimonial
ChrisSenior SWE, LinkedIn

"10 years of experience but never worked at a top company. PracHub's senior-level questions helped me break into FAANG at 35. Age is just a number."

sleepy33 testimonial
sleepy33

"I was skeptical about the 'real questions' claim, so I put it to the test. I searched for the exact question I got grilled on at my last Meta onsite... and it was right there. Word for word."

Jake testimonial
JakeSenior ML Engineer, Lyft

"Got a Google recruiter call on Monday, interview on Friday. Crammed PracHub for 4 days. Passed every round. This platform is a miracle worker."

nuggetlord testimonial
nuggetlord

"I've used LC, Glassdoor, and random Discords. Nothing comes close to the accuracy here. The questions are actually current — that's what got me. Felt like I had a cheat sheet during the interview."

Carlos testimonial
CarlosFull Stack, Shopify

"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."

boba.tea.vibes testimonial
boba.tea.vibes

"Legit the only resource you need. TC went from 180k -> 350k. Just memorize the top 50 for your target company and you're golden."

Andy testimonial
AndySWE-II, Google

"PracHub Premium for one month cost me the price of two coffees a week. It landed me a $280K+ starting offer."

couchpotato99 testimonial
couchpotato99

"Literally just signed a $600k offer. I only had 2 weeks to prep, so I focused entirely on the company-tagged lists here. If you're targeting L5+, don't overthink it."

Shruti testimonial
ShrutiData Engineer, Salesforce

"Coaches and bootcamp prep courses cost around $200-300 but PracHub Premium is actually less than a Netflix subscription. And it landed me a $178K offer."

midnightramen testimonial
midnightramen

"I honestly don't know how you guys gather so many real interview questions. It's almost scary. I walked into my Amazon loop and recognized 3 out of 4 problems from your database."

Bianca testimonial
BiancaFrontend Eng, Figma

"Discovered PracHub 10 days before my interview. By day 5, I stopped being nervous. By interview day, I was actually excited to show what I knew."

tambrahm007 testimonial
tambrahm007

"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."

toa testimonial
toa

"The search is what sold me. I typed in a really niche DP problem I got asked last year and it actually came up, full breakdown and everything. These guys are clearly updating it constantly."

PLTCHK testimonial
PLTCHK

"I got asked a hardcore MCM DP question and I saw it on PracHub as well. Solved that question in 5 minutes. Without PracHub I doubt I could solve it in 5 hours. Though somehow didn't get hired, perhaps I guess I solved it too fast? /s"

_The_TaNk_ testimonial
_The_TaNk_

"Believe me i'm a student here jn US. Recently interviewed for MSFT. They asked me exact question from PracHub. I saw it the night before and ignored it cause why waste time on random sites. I legit wanna go back and redo this whole thing if I had chance. Not saying will work for everyone but there is certainly some merit to that website. And i'm gonna use it in future prep from now on like lc tagged"

Chris testimonial
ChrisSenior SWE, LinkedIn

"10 years of experience but never worked at a top company. PracHub's senior-level questions helped me break into FAANG at 35. Age is just a number."

sleepy33 testimonial
sleepy33

"I was skeptical about the 'real questions' claim, so I put it to the test. I searched for the exact question I got grilled on at my last Meta onsite... and it was right there. Word for word."

Jake testimonial
JakeSenior ML Engineer, Lyft

"Got a Google recruiter call on Monday, interview on Friday. Crammed PracHub for 4 days. Passed every round. This platform is a miracle worker."

nuggetlord testimonial
nuggetlord

"I've used LC, Glassdoor, and random Discords. Nothing comes close to the accuracy here. The questions are actually current — that's what got me. Felt like I had a cheat sheet during the interview."

Carlos testimonial
CarlosFull Stack, Shopify

"The solution quality is insane. It covers approach, edge cases, time complexity, follow-ups. Nothing else comes close."

boba.tea.vibes testimonial
boba.tea.vibes

"Legit the only resource you need. TC went from 180k -> 350k. Just memorize the top 50 for your target company and you're golden."

Andy testimonial
AndySWE-II, Google

"PracHub Premium for one month cost me the price of two coffees a week. It landed me a $280K+ starting offer."

couchpotato99 testimonial
couchpotato99

"Literally just signed a $600k offer. I only had 2 weeks to prep, so I focused entirely on the company-tagged lists here. If you're targeting L5+, don't overthink it."

Shruti testimonial
ShrutiData Engineer, Salesforce

"Coaches and bootcamp prep courses cost around $200-300 but PracHub Premium is actually less than a Netflix subscription. And it landed me a $178K offer."

midnightramen testimonial
midnightramen

"I honestly don't know how you guys gather so many real interview questions. It's almost scary. I walked into my Amazon loop and recognized 3 out of 4 problems from your database."

Bianca testimonial
BiancaFrontend Eng, Figma

"Discovered PracHub 10 days before my interview. By day 5, I stopped being nervous. By interview day, I was actually excited to show what I knew."

tambrahm007 testimonial
tambrahm007

"I recently cleared Uber interviews (strong hire in the design round) and all the questions were present in prachub."

toa testimonial
toa

"The search is what sold me. I typed in a really niche DP problem I got asked last year and it actually came up, full breakdown and everything. These guys are clearly updating it constantly."

Showing 20 results
Google logo
Google
Medium
Software Engineer

Find Players with Uniquely Determined Rankings

Find Players with Uniquely Determined Rankings Problem There are n players numbered 0 through n - 1. Each result (winner, loser) states that the winne...

Coding & Algorithms
4
2
56 people solved
Apr 19, 2026
Atlassian logo
Atlassian
Medium
Software Engineer Locked

Merge overlapping intervals

This question evaluates understanding of interval manipulation, array processing, and algorithmic efficiency by requiring reasoning about overlapping ...

Coding & Algorithms
13
0
92 people solved
Jan 22, 2026
Nextdoor logo
Nextdoor
Medium
Machine Learning Engineer

Merge overlapping weekly time intervals

You are given a list of time intervals representing meetings. Each interval is a pair of strings in the format: - "<Day> <H>:<MM>" (24-hour time) - <D...

Coding & AlgorithmsIntervals & SchedulingSorting
20
0
152 people solved
Mar 1, 2026
Uber logo
Uber
Medium
Machine Learning Engineer

Implement a Referral Revenue Tracker

Implement an in-memory revenue tracking system for customers in a referral network. Each customer has their own direct revenue. A customer may also ha...

Coding & AlgorithmsTreesData Structure Design
13
0
128 people solved
Apr 19, 2026
Airbnb logo
Airbnb
Hard
Software Engineer

Design an A/B Testing Platform

Design an A/B Testing Platform Design a platform that lets product teams define an experiment, assign eligible users consistently to control or treatm...

System DesignSystem Design FundamentalsExperiment Analysis & Readout
17
0
150 people solved
Apr 21, 2026
Google logo
Google
Medium
Software EngineerIntern Locked

Maximize 1D deliveries within distance and minimize total distance

This question evaluates combinatorial optimization and constrained matching skills, focusing on reasoning about distance-based pairings, lexicographic...

Coding & AlgorithmsDynamic ProgrammingSorting
12
0
139 people solved
Dec 27, 2025
Coursera logo
Coursera
Hard
Software Engineer

Implement Plurality and Runoff Voting

You are given a list of ballots for an election. Each ballot is an ordered list of distinct candidate names, from highest preference to lowest prefere...

Coding & Algorithms
3
0
58 people solved
Feb 12, 2026
Applied Intuition logo
Applied Intuition
Easy
Software Engineer

Design a mini compiler/interpreter

Problem Design and implement a mini compiler / interpreter for a small expression language. You are given a program as a string (possibly multiple lin...

Software Engineering Fundamentals
9
0
94 people solved
Feb 12, 2026
Snowflake logo
Snowflake
Hard
Software Engineer

Compute nearest bathroom distance for each desk

You are given an m x n grid of characters containing only: - 'B' = bathroom - 'D' = desk - '_' = empty cell From any cell you may move one step up/dow...

Coding & AlgorithmsGrids & Matrices
19
0
235 people solved
Jan 16, 2026
Hudson River Trading logo
Hudson River Trading
Medium
Software Engineer

Design comprehensive OA test cases

Designing Your Own Test Cases in an Online Assessment Context You are taking a timed technical online assessment (OA) for a software engineering role....

Behavioral & LeadershipTesting & Quality
40
0
327 people solved
Sep 6, 2025
EliseAI logo
EliseAI
Medium
Software Engineer

Design an OpenAI chatbot in two hours

Design and Build a Minimal Conversational Chatbot (2-Hour Coding Exercise) You are given an OpenAI API key and two hours. Design and implement a minim...

ML System DesignAPI Integration & HTTP ClientsLLM Applications
40
0
578 people solved
Sep 6, 2025
Attentive logo
Attentive
Medium
Software Engineer Locked

Design Storage for a Flexible Metrics Monitoring System

Design persistence for a metrics monitoring system by working backward from concrete query patterns. Choose record identity, partitions, indexes, retr...

System Design
7
1
66 people solved
Jul 26, 2026
Meta logo
Meta
Medium
Backend Engineer AI Locked

Solve coding and AI-assisted tasks

This set evaluates algorithmic problem-solving across arrays, immutable linked-list interfaces, parent-pointer tree traversal, string validity via min...

Coding & AlgorithmsGrids & MatricesLinked Lists
18
0
138 people solved
Apr 8, 2026
Capital One logo
Capital One
Medium
Software Engineer Locked

Arrange Match Results in Repeating Win-Draw-Loss Order

Rearrange a multiset of win, draw, and loss markers into repeated W-D-L rounds, skipping any marker once its supply is exhausted. The problem tests ex...

Coding & Algorithms
10
0
84 people solved
Jul 21, 2026
Bobyard logo
Bobyard
Medium
Software Engineer Locked

Build Nested Comments from Parent References

Transform flat comments with parent IDs into a validated nested forest, even when children arrive before parents. Build an ID index, detect missing li...

Software Engineering Fundamentals
2
0
34 people solved
Aug 1, 2026
Amazon logo
Amazon
Easy
Software EngineerIntern Locked

Determine Whether One Person Can Attend Every Meeting

Determine whether one person can attend every meeting in a collection of half-open time intervals. This question checks overlap reasoning, endpoint se...

Coding & Algorithms
7
0
56 people solved
Aug 1, 2026
Optiver logo
Optiver
Easy
Quantitative Researcher

Stone Pile Doubling Game: Can One Pile Be Emptied?

You are given two piles of stones containing a and b stones respectively (both piles start non-empty). You repeatedly apply the following move: - Let ...

Coding & Algorithms
15
0
147 people solved
Jul 26, 2025
Oscar logo
Oscar
Easy
Software EngineerSenior+ Locked

Design a Stateful Outreach Campaign Engine

Design a per-client outreach campaign that sends email and timed text follow-ups, stops on response, and records terminal failure or unresponsiveness....

System Design
4
0
41 people solved
Jul 14, 2026
Capital One logo
Capital One
Medium
Data Scientist

Merge CSVs and build revenue pivot with pandas

You receive four CSVs and must replicate an Excel VLOOKUP + PivotTable workflow using Python/pandas. CSV samples: customers.csv customer_id,signup_dat...

Data Manipulation (SQL/Python)Pandas & Python DataData Cleaning & Wrangling
15
0
191 people solved
Oct 13, 2025
Nike logo
Nike
Medium
Software Engineer Locked

Choose a Sorting Algorithm from Workload Constraints

Choose sorting approaches for a worst-case-sensitive array, a stable linked list, an external data stream, and a nearly sorted UI array by connecting ...

Software Engineering Fundamentals
1
0
13 people solved
Aug 4, 2026
Previous1...193194195...606Next
Popular Categories
SQLBlind 75
Daily Quest

Sign in to earn XP for every problem you solve.

Choose your next challenge

All learning

Blind 75

75 free coding problems to build your foundations, with hints, explanations, and a progress checklist.

Arrays · Graphs · Dynamic programming

Explore Blind 75

ML System Design

Work through the decisions behind machine learning systems, from data to serving.

Data · Models · Evaluation

Explore the course

System Design Interview

Practice reasoning about architecture, scale, and the tradeoffs that shape a system.

Architecture · Scale · Tradeoffs

Explore the course

Explore by company

All companies
  • Meta
  • Google
  • Amazon
  • Apple
  • Microsoft
  • Netflix
  • Capital One
  • TikTok
  • DoorDash
  • Uber
  • Coinbase
  • Airbnb
  • LinkedIn
  • Salesforce
  • Snapchat
  • Spotify
  • PayPal
  • Lyft
  • Pinterest
  • Anthropic
  • OpenAI
  • Databricks
  • Rippling
  • Jane Street
  • Stripe

Explore by role

  • Data Scientist
  • Software Engineer
  • Machine Learning Engineer
  • Product Manager
  • Data Engineer
  • Data Analyst
  • Frontend Engineer
  • Backend Engineer
  • Site Reliability Engineer
  • Technical Program Manager

Explore by category

  • Blind 75
  • Coding & Algorithms
  • System Design
  • Machine Learning
  • ML System Design
  • SQL & Python
  • Analytics & Experimentation
  • Behavioral & Leadership
  • Statistics & Math
  • Product / Decision Making
  • Product Design & Strategy
  • SWE Fundamentals

Popular interview guides

  • Meta SWE
  • Meta DS
  • Meta PM
  • Google SWE
  • Google DS
  • Google MLE
  • Amazon SWE
  • Amazon DS
  • Amazon DE
  • Apple SWE
  • Apple MLE
  • Microsoft SWE
  • Microsoft DS
  • TikTok SWE
  • TikTok DS
  • Uber SWE
  • Uber DS
  • DoorDash SWE
  • DoorDash DS
  • Airbnb SWE
  • Airbnb DS
  • LinkedIn SWE
  • LinkedIn DS
  • Netflix SWE
  • Coinbase SWE
  • Capital One DS
  • OpenAI SWE
  • Anthropic SWE

Popular question categories

  • Blind 75
  • Meta Coding
  • Google System Design
  • Amazon Coding
  • Meta Analytics
  • Google ML
  • Amazon System Design
  • Capital One SQL
  • TikTok ML
  • Meta SQL
  • Uber Analytics
  • DoorDash Coding
  • Google Coding
  • Netflix System Design
  • Airbnb Analytics
  • LinkedIn SQL